Bismuth-catalyzed intramolecular carbo-oxycarbonylation of 3-alkynyl esters.
Borderline metal complexes, especially Bi(OTf)3, efficiently catalyze the carbo-oxycarbonylation of alkynyl esters to form multisubstituted lactones in moderate to high yields.
Komeyama
Kimihiro
K
Department of Chemistry and Chemical Engineering, Graduate School of Engineering, Hiroshima University, Higashi-Hiroshima, Japan. kkome@hiroshima-u.ac.jp
Takahashi
Keita
K
Takaki
Ken
K
D000447:Aldehydes / Q000737:chemistry*; D000480:Alkynes / Q000737:chemistry*; D001729:Bismuth / Q000737:chemistry*; D002384:Catalysis; D004952:Esters / Q000737:chemistry*; D007659:Ketones / Q000737:chemistry*
D000447:Aldehydes; D000480:Alkynes; D004952:Esters; D007659:Ketones; D001729:Bismuth